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Finding the Fourth Proportional to 74,756.80, 112,291.20 and 63,092.80

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Solution

The fourth proportional to 74,756.80, 112,291.20 and 63,092.80 is: 94,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,756.80 : 112,291.20 = 63,092.80 : x
  2. Step 2: Convert to fraction form
    74,756.80/112,291.20 = 63,092.80/x
  3. Step 3: Cross multiply
    74,756.80x = 112,291.20 × 63,092.80
  4. Step 4: Simplify right side
    74,756.80x = 7,084,766,223.36
  5. Step 5: Solve for x
    x = 7,084,766,223.36/74,756.80
  6. Step 6: Final answer
    x = 94,770.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.